Watch this first and read the rest later, please.
From a social point of view each of us can be seen as an oscillator – we change in time and we all have our ups and downs – only not a mechanically one. We also tend to be in sync with our fellow humans while jealously trying to preserve our individuality.
Without preserving our individualities we would be nothing but a herd, without sync-ing there’s no cooperation.
A very fine equilibrium indeed.
PS if you are interested in the physics of all this please check here.